diff --git a/Classes/Domain/Repository/RedirectRepository.php b/Classes/Domain/Repository/RedirectRepository.php
index e79fd7e..9d3bb6a 100644
--- a/Classes/Domain/Repository/RedirectRepository.php
+++ b/Classes/Domain/Repository/RedirectRepository.php
@@ -216,4 +216,32 @@ protected function iterate(IterableResult $iterator, callable $callback = null)
             $iteration++;
         }
     }
+
+    /**
+     * Persists all entities managed by the repository and all cascading dependencies
+     *
+     * @return void
+     */
+    public function persistEntities()
+    {
+        foreach ($this->entityManager->getUnitOfWork()->getIdentityMap() as $className => $entities) {
+            if ($className === $this->entityClassName) {
+                foreach ($entities as $entityToPersist) {
+                    $this->entityManager->flush($entityToPersist);
+                }
+                $this->emitRepositoryObjectsPersisted();
+                break;
+            }
+        }
+    }
+
+    /**
+     * Signals that persistEntities() in this repository finished correctly.
+     *
+     * @Flow\Signal
+     * @return void
+     */
+    protected function emitRepositoryObjectsPersisted()
+    {
+    }
 }
diff --git a/Classes/RedirectStorage.php b/Classes/RedirectStorage.php
index a8d615e..ae5bf77 100644
--- a/Classes/RedirectStorage.php
+++ b/Classes/RedirectStorage.php
@@ -11,7 +11,6 @@
  * source code.
  */
 
-use Doctrine\ORM\OptimisticLockException;
 use Neos\RedirectHandler\DatabaseStorage\Domain\Model\Redirect;
 use Neos\RedirectHandler\DatabaseStorage\Domain\Repository\RedirectRepository;
 use Neos\RedirectHandler\Exception;
@@ -21,7 +20,6 @@
 use Neos\RedirectHandler\Traits\RedirectSignalTrait;
 use TYPO3\Flow\Annotations as Flow;
 use TYPO3\Flow\Mvc\Routing\RouterCachingService;
-use TYPO3\Flow\Persistence\PersistenceManagerInterface;
 
 /**
  * Database Storage for the Redirects
@@ -38,12 +36,6 @@ class RedirectStorage implements RedirectStorageInterface
      */
     protected $redirectRepository;
 
-    /**
-     * @Flow\Inject
-     * @var PersistenceManagerInterface
-     */
-    protected $persistenceManager;
-
     /**
      * @Flow\Inject
      * @var RouterCachingService
@@ -109,7 +101,8 @@ public function removeAll()
     /**
      * {@inheritdoc}
      */
-    public function removeByHost($host = null) {
+    public function removeByHost($host = null)
+    {
         $this->redirectRepository->removeByHost($host);
     }
 
@@ -121,7 +114,7 @@ public function addRedirect($sourceUriPath, $targetUriPath, $statusCode = null,
         $statusCode = $statusCode ?: (integer)$this->defaultStatusCode['redirect'];
         $redirects = [];
         if ($hosts !== []) {
-            array_map(function($host) use ($sourceUriPath, $targetUriPath, $statusCode, &$redirects) {
+            array_map(function ($host) use ($sourceUriPath, $targetUriPath, $statusCode, &$redirects) {
                 $redirects[] = $this->addRedirectByHost($sourceUriPath, $targetUriPath, $statusCode, $host);
             }, $hosts);
         } else {
@@ -165,15 +158,14 @@ protected function updateDependingRedirects(RedirectInterface $newRedirect)
         $existingRedirectForTargetUriPath = $this->redirectRepository->findOneBySourceUriPathAndHost($newRedirect->getTargetUriPath(), $newRedirect->getHost(), false);
 
         if ($existingRedirectForTargetUriPath !== null) {
-            if ($existingRedirectForTargetUriPath->getTargetUriPath() === $newRedirect->getSourceUriPath()) {
-                $this->redirectRepository->remove($existingRedirectForTargetUriPath);
-            } else {
-                throw new Exception(sprintf('A redirect exists for the target URI path "%s", please remove it first.', $newRedirect->getTargetUriPath()), 1382091526);
-            }
+            $this->removeAndLog($existingRedirectForTargetUriPath, sprintf('Existing redirect for the target URI path "%s" removed.', $newRedirect->getTargetUriPath()));
+            $this->routerCachingService->flushCachesForUriPath($existingRedirectForTargetUriPath);
         }
         if ($existingRedirectForSourceUriPath !== null) {
-            throw new Exception(sprintf('A redirect exists for the source URI path "%s", please remove it first.', $newRedirect->getSourceUriPath()), 1382091456);
+            $this->removeAndLog($existingRedirectForSourceUriPath, sprintf('Existing redirect for the source URI path "%s" removed.', $newRedirect->getSourceUriPath()));
+            $this->routerCachingService->flushCachesForUriPath($existingRedirectForSourceUriPath);
         }
+
         $obsoleteRedirectInstances = $this->redirectRepository->findByTargetUriPathAndHost($newRedirect->getSourceUriPath(), $newRedirect->getHost());
         /** @var $obsoleteRedirect Redirect */
         foreach ($obsoleteRedirectInstances as $obsoleteRedirect) {
@@ -186,6 +178,18 @@ protected function updateDependingRedirects(RedirectInterface $newRedirect)
         }
     }
 
+    /**
+     * @param RedirectInterface $redirect
+     * @param string $message
+     * @return void
+     */
+    protected function removeAndLog(RedirectInterface $redirect, $message)
+    {
+        $this->redirectRepository->remove($redirect);
+        $this->redirectRepository->persistEntities();
+        $this->_logger->log($message, LOG_NOTICE);
+    }
+
     /**
      * Increment the hit counter for the given redirect
      *